Massachusetts 

 Agricultural Experiment Station 



BULLETIN No. 232 FEBRUARY, 1927 



EFFECT OF POTASH SALTS 

 ON CROP YIELDS 



By SIDNEY B. HASKELL 



Occasionally better table quedity of potatoes, but seldom any signifi- 

 cant difference in yields; variations in the stand of grass and clover, but 

 surprising similarity in yields of hay; a distinct difference in the winter- 

 killing of cane fruits, with consequent large differences in yield; no indica- 

 tion of sulfur shortage even after thirty years of treatment with little or 

 no sulfur in the fertilizer, and a similar result with magnesium, — these are 

 among the more important results of long-continued experiments compar- 

 ing chemical forms of fertilizer potash, as reported in this bulletin. 



Requests for bulletins should be addressed to 



AGRICULTURAL EXPERIMENT STATION 

 AMHERST, MASS. 



